Tension device for loom-shuttles.



. PATENTE) PEB. 11, 1.908.

y E OBRHAROTS. TENSION OBVIOB FOR LOOM SHUTTLOS.

PPLIGATION FILED TBB. 18. l907` mw mw a O N m.

MQW

ERNEST GERHRDTS, F WESTBROOK, MAINE;

.ne eremo. I

Speccation oi' Lettere Patent,

Patented ret. ii, isos.

Application filed February l' 1907. Serial No. 35306331 To all whom 'it'may concern:`

Be it known that l, ERNEST GERHARDTS, citizen of the United States,residing' vat ltfest'broolij, in the county oi Cumberland and State oiMaine, have invented certain new and useful improvements in TensionDevices for Loom-Shuttles; andsl do declare the following to be a full,clear, and exact description of the invention, such as. will enableothers skilled in the art to which it appertains, to make and use thesame.

rlhisv invention. relates to a tension device for loom shuttles.

The object of the invention is to provide tension device disposed in thebody olI the shuttle 'which is sim le in construction, cheap anddurable, an which' will facilitate the regulation ol the tension on thethread. as it is talren from the bobbin, insurinan even and uniformdistribution of theilling and securingl the accurate binding of thecloth in Weavine.

, `.Figure l of the accompanying` drawings,

represents a top plan view of the shuttle embodyingthis improved tensiondevice, and havingn parts broken out; Figs 2 represents a longitudinalvertical section thereof; and llig. 3 represents a detail perspectiveview showing this improved tension device in posi` tion in a shuttle. Y

ln the embodiment illustrated, the shuttle bobbin, l, is of ordinaryconstruction, having any desired form ofbobbin spindle, 2, and bobbinholder, 3, with the ordinary tension device, or shuttle arm, l, andpins, 5, ar.

ranged in a chainber at'the front end thereof. rlhis improvementconsists 1n .a tension device arranged in a recess or chamber, at

the end of the bobbin chamber, 7, and separated by a bridge or wall, 8,from the tension chamber 'at the forward end of the shuttle. Extendingtransversely across the bottom of the chamber, 6, at its rear end aretwo laterally spaced pins, 15 and 16. Mounted on the lower pin, l5, is acoiled spring, i7, having one end extending forwardly and flaredoutwardly and having its other end adapted for use as a iiier, 18,forming a hairpin-sha ed member. This ilierli projects liorwar ly in'the chamber, 6, and is .provided with a rings, or eyes; as 19, anydesired number of which may be employed. The pin, 16, is designed as aguard for the spring, 17, to prevent the yarn from becoming entan ledtherewith. Disposed across said cham er, o, above said arm, 1.8, are aplurality ol' pins, as 20, arranged in stepdilre succession, one

plurality of longitudinally spaced between each of the rin s,' as 19, ofthe arno, f

13'.- llxtending throui the end wall, or bridge, between the ciarnbcr,6, and the tension chamber at 'the ront'oi the shuttle, is a threadpassage or channel, 9. The arm, Ll, merges at one end into ajcoiledspring, which is mounted loosely on a screw, on which the arm, e, swingslaterally. This arm, 4i, is provided with the usual spaced rings withwhich the pins, 5, alternate. @ne 'end of the spring to which the flier,or arm, 4, is connected, projects into a recess,

12, in. the side of the shuttle andhas con-` nected thereto the spring,13, disposed in said recess, 12, A thread passage," lll, sietendsthrough the top wall of the chamber at the front ofthe shuttle.

To thread a'shiittle having'l this improvement applied thereto after aviiiled bobbin has been placed on the spindle, 2, the thread or yarn, 30,is passed over the pin, 16, and the first of the pins, as 20, and thenthrough the rings or eyes, as L9, and over the succeeding pins, as 20,alternately, then through the channel or passage, Q, and around thepins, 5, and through the eyes of the shattlc arm, e, alternately, andthen out throu h the opening, lll, in the t'op'wall, and t e shuttle isthen ready 'for use.

.l claim as my invention:

1. A loom. shuttle ber, a chamber arran ed in the front end thereof andhaving a s iuttle arm or tension device operable therein, a chamberarranged between vsaid bobbin chamber and said shuttle arin chamber, andan auxiliary tension device mounted in lsaid intermediate chamber.

2. A loom shuttle having; a bobbin chamber and a chamber at its frontend, alatatV having a bobbin oham- I erally swinging shuttle armdisposed in saidl last mentioned chamber, a chamber arranged :1L the.Tear Qi' said shuttle arm Cham-l my hand in presence. of two Subscribingwither betwec'nit and the bobb-n Chamber :md mossos.

having pins xtending transversely thereof,

and a sprng-plessad tension device mnunod o swing in said last' mentioedchamber nfnd 'Yii'vncss'es:

lui-ving means for elgzxgng said pins. j W. M. LAMB, in testimony hervof.I hm'v hmf-.unto svt l' MM'DF. SWAN.

.EN NEST GER HLR DTS.

